.region-dossier-main {
  background: var(--bg);
  color: var(--text-primary);
  padding: var(--space-7, 32px) 0 var(--space-10, 64px);
}

.region-dossier-intro {
  padding-bottom: var(--space-8, 40px);
  border-bottom: 1px solid var(--border);
}

.region-dossier-intro__copy,
.region-dossier-support,
.region-dossier-visual {
  min-width: 0;
}

.region-dossier-back,
.region-dossier-actions > a:not(.btn),
.region-signal-row > a,
.region-method-list a,
.region-dossier-provenance a,
.region-dossier-disclosure a {
  color: var(--brand);
  font-weight: 700;
  text-decoration: none;
}

.region-dossier-back:hover,
.region-dossier-actions > a:not(.btn):hover,
.region-signal-row > a:hover,
.region-method-list a:hover,
.region-dossier-provenance a:hover,
.region-dossier-disclosure a:hover {
  text-decoration: underline;
}

.region-dossier-context {
  margin: var(--space-5, 20px) 0 var(--space-3, 12px);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.region-dossier-intro h1 {
  max-width: 26ch;
  margin: 0;
  font-size: clamp(2.45rem, 4.4vw, 4rem);
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.region-dossier-lead {
  max-width: 68ch;
  margin: var(--space-5, 20px) 0 0;
  color: var(--text-muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.region-dossier-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3, 12px);
  align-items: center;
  margin-top: var(--space-6, 24px);
}

.region-dossier-reference-note {
  max-width: 68ch;
  margin: var(--space-4, 16px) 0 0;
  padding-left: var(--space-3, 12px);
  border-left: 3px solid var(--brand);
  color: var(--text-muted);
  line-height: 1.55;
}

.region-dossier-provenance dl,
.region-dossier-disclosure dl {
  margin: 0;
}

.region-dossier-provenance dl > div,
.region-dossier-disclosure dl > div {
  display: grid;
  grid-template-columns: minmax(110px, 0.7fr) minmax(0, 1.3fr);
  gap: var(--space-3, 12px);
  padding: var(--space-3, 12px) 0;
  border-top: 1px solid var(--border);
}

.region-dossier-provenance dt,
.region-dossier-disclosure dt,
.region-fact-list dt {
  color: var(--text-faint);
  font-size: 0.78rem;
  font-weight: 700;
}

.region-dossier-provenance dd,
.region-dossier-disclosure dd,
.region-fact-list dd {
  margin: 0;
}

.region-dossier-section {
  padding-top: var(--space-8, 40px);
}

.region-dossier-section__head {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-6, 24px);
  align-items: start;
  margin-bottom: var(--space-5, 20px);
}

.region-dossier-section__head h2,
.region-dossier-provenance h2,
.region-dossier-limitations h2 {
  margin: 0;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.region-dossier-section__head p,
.region-dossier-provenance > div p,
.region-dossier-limitations > div p {
  max-width: 68ch;
  margin: 0;
  color: var(--text-muted);
  line-height: 1.6;
}

.region-signal-list {
  border-top: 1px solid var(--border);
}

.region-signal-row {
  display: grid;
  grid-template-columns: minmax(210px, 1.3fr) minmax(130px, 0.65fr) minmax(130px, 0.75fr) minmax(100px, 0.55fr);
  gap: var(--space-5, 20px);
  align-items: center;
  min-height: 92px;
  padding: var(--space-4, 16px) 0;
  border-bottom: 1px solid var(--border);
}

.region-signal-row h3,
.region-method-list h3 {
  margin: 0;
  font-size: 1rem;
}

.region-signal-row p,
.region-method-list p {
  margin: var(--space-1, 4px) 0 0;
  color: var(--text-muted);
  line-height: 1.5;
}

.region-signal-row > strong {
  font-family: var(--font-mono);
  font-size: 1.32rem;
}

.region-signal-row > span {
  color: var(--text-muted);
}

.region-dossier-frame {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-8, 40px);
}

.region-dossier-frame .region-dossier-section__head {
  grid-template-columns: 1fr;
  gap: var(--space-2, 8px);
}

.region-dossier-support {
  padding-top: var(--space-8, 40px);
}

.region-fact-list {
  margin: 0;
  border-top: 1px solid var(--border);
}

.region-fact-list > div {
  display: grid;
  grid-template-columns: minmax(120px, 0.65fr) minmax(0, 1.35fr);
  gap: var(--space-4, 16px);
  padding: var(--space-4, 16px) 0;
  border-bottom: 1px solid var(--border);
}

.region-fact-list dd strong,
.region-fact-list dd span {
  display: block;
}

.region-fact-list dd strong {
  margin-bottom: var(--space-1, 4px);
  font-size: 1.05rem;
}

.region-fact-list dd span {
  color: var(--text-muted);
  line-height: 1.45;
}

.region-method-list {
  border-top: 1px solid var(--border);
}

.region-method-list article {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-4, 16px);
  align-items: center;
  min-height: 110px;
  padding: var(--space-4, 16px) 0;
  border-bottom: 1px solid var(--border);
}

.region-dossier-provenance,
.region-dossier-limitations {
  display: grid;
  grid-template-columns: minmax(240px, 0.75fr) minmax(0, 1.25fr);
  gap: var(--space-8, 40px);
  margin-top: var(--space-8, 40px);
  padding-top: var(--space-6, 24px);
  padding-bottom: var(--space-6, 24px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.region-dossier-limitations {
  margin-top: 0;
  border-top: 0;
}

.region-dossier-limitations ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
}

.region-dossier-limitations li + li {
  margin-top: var(--space-3, 12px);
}

.region-dossier-disclosure {
  margin-top: var(--space-6, 24px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.region-dossier-disclosure + .region-dossier-disclosure {
  margin-top: 0;
  border-top: 0;
}

.region-dossier-disclosure summary {
  display: grid;
  grid-template-columns: minmax(220px, 0.75fr) minmax(0, 1.25fr) auto;
  gap: var(--space-6, 24px);
  align-items: center;
  min-height: 96px;
  padding: var(--space-4, 16px) 0;
  cursor: pointer;
  list-style-position: outside;
}

.region-dossier-disclosure summary span {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.region-dossier-disclosure summary small {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.region-dossier-disclosure[open] {
  padding-bottom: var(--space-5, 20px);
}

.region-dossier-disclosure dl,
.region-dossier-disclosure ul,
.region-dossier-disclosure .region-related-list {
  margin-top: 0;
}

.region-dossier-disclosure ul {
  padding-left: 1.25rem;
  color: var(--text-muted);
}

.region-dossier-disclosure li + li {
  margin-top: var(--space-3, 12px);
}

.region-related-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
}

.region-related-list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-1, 4px) var(--space-4, 16px);
  padding: var(--space-4, 16px) 0;
  color: var(--text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
}

.region-related-list a:nth-child(odd) {
  padding-right: var(--space-5, 20px);
}

.region-related-list a:nth-child(even) {
  padding-left: var(--space-5, 20px);
  border-left: 1px solid var(--border);
}

.region-related-list span,
.region-related-list small {
  color: var(--text-muted);
}

.region-related-list small {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
}

.region-dossier-empty {
  padding: var(--space-5, 20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg, 12px);
  background: var(--surface);
}

@media (max-width: 1023px) {
  .region-dossier-frame,
  .region-dossier-provenance,
  .region-dossier-limitations {
    grid-template-columns: 1fr;
  }

  .region-signal-row {
    grid-template-columns: minmax(190px, 1.2fr) minmax(120px, 0.65fr) minmax(120px, 0.75fr);
  }

  .region-signal-row > a {
    grid-column: 3;
  }
}

@media (max-width: 767px) {
  .region-dossier-main {
    padding-top: var(--space-5, 20px);
  }

  .region-dossier-intro {
    padding-bottom: var(--space-6, 24px);
  }

  .region-dossier-intro h1 {
    max-width: none;
    font-size: clamp(2.35rem, 13vw, 3.5rem);
    overflow-wrap: anywhere;
  }

  .region-dossier-context {
    overflow-wrap: anywhere;
  }

  .region-dossier-actions {
    align-items: stretch;
  }

  .region-dossier-actions .btn {
    flex: 1 1 100%;
  }

  .region-dossier-support,
  .region-dossier-section,
  .region-dossier-provenance,
  .region-dossier-limitations {
    padding-top: var(--space-6, 24px);
  }

  .region-dossier-section__head {
    grid-template-columns: 1fr;
    gap: var(--space-2, 8px);
  }

  .region-signal-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-2, 8px) var(--space-4, 16px);
    align-items: start;
  }

  .region-signal-row > strong {
    grid-column: 2;
    grid-row: 1;
  }

  .region-signal-row > span,
  .region-signal-row > a {
    grid-column: 1 / -1;
  }

  .region-fact-list > div,
  .region-dossier-provenance dl > div,
  .region-dossier-disclosure dl > div {
    grid-template-columns: 1fr;
    gap: var(--space-1, 4px);
  }

  .region-method-list article {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .region-related-list {
    grid-template-columns: 1fr;
  }

  .region-dossier-disclosure summary {
    grid-template-columns: 1fr auto;
    gap: var(--space-2, 8px) var(--space-4, 16px);
    min-height: 84px;
  }

  .region-dossier-disclosure summary small {
    grid-column: 1 / -1;
  }

  .region-related-list a:nth-child(odd),
  .region-related-list a:nth-child(even) {
    padding-right: 0;
    padding-left: 0;
    border-left: 0;
  }
}

@media (max-width: 420px) {
  .region-related-list a {
    grid-template-columns: 1fr;
  }

  .region-related-list small {
    grid-column: 1;
    grid-row: auto;
  }
}